Cutting device for calenders



law a, 1921. 1,651,837

A. E. RICHEY v CUTTING DEVICE FOR CAILENDERS I Filed .4, 1925 v 3 Patented Dec. 6,1927.

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CUTTING nnvronron CALENDERS;

Application filed January 4, 1926. Serial No. 79,173..

against the calender on the side of the calender most convenient to the operator. Another object is to have a means, by use of 1ndicators, of knowing where to setthe con trol handle. Other objects and advantages will appear in the following description and be pointed out in the appended clalms.

Referring to the drawings,

Fig. l is a front view of a calender showing the knife control in position;

Fig. 2 is a view taken on line 22. of

Fig. 1

Fig. 3 is an enlarged view of the knife mechanism shown in Fig. 2;

Fig. 4 is a view taken on line 4et of Fi 3- l fig. 5 is a view taken on line 5-5 of Fig.

1; and

Fig. 6 is a front elevation ofthe parts shown in Fig. 5. a

M invention has been illustrated as ap plie to a roll calender of an ordinary type, although it is adaptable to many other types. The calender has side frames 10 and rolls 11, 12 and 13, journaled in said frames and geared at A to rotate as shown byarrows 14 and 15.

'The stock is sheeted between rolls 11 and 12 from a feed 16 into a wide strip 17 and trimmed on roll 12 by knives'18. Cord or fabric material 6 may be fed in between rolls 12 and 13, this material becoming coated with the sheet of rubber 17 tov form a final composite sheet 0. Knife 18 is secured in a pivoted arm 19, said arm having a weight in some convenient form, such as a ball-20 as shown, so as to hold the knife 18'against the calender roll 12 yieldingly.

The knife arm 19 is pivoted by pin21to a sleeved holder 22, said holder being keyed to a rod 23 and held in place by a set-screw 24. The sleeved holder 22 is loosely pinned at'25 to a. lever 26, this lever being fixed by means of a pin or set-screw 27 to one end of a rod 28. A lever 29, similar to lever 26, is fixed at the other end of the being revolvingly held by ets 30 to the side frame 10 of the calender, as shown in Fig. 2. Lever 29 is loosely pinned to a sleeved holder 31, this holder.

means of; brackbeing free to slide on a rod 32 unless fastened a control handle 33, a

in a desired position by said handle being threaded through a boss on the holder 31 and adapted toact as a set-- screw against the rod 32. When the control handle 33 is loosened and moved either one way or the other the knife 18, on the oprod 28, said rod posite side oft-he calender roll, will move correspondingly because ofthe similar levers 26 and 29. i

a An indicator 34, bent so as to bein line with the knife though on the opposite side v of the-calender roll, is fastened by means of a screw 35 to the holder 31, the indicator point coming in line with and close to the edge of the finished sheet of material. Al

though the cutting without the aid of'the indicator, in practice the use of'said indicator is much preferred.

apparatus may be used Having thus described my' invention, I

claim 1. An apparatus used on roll calenders for 'cuttmg or trlmmingsheets of material, comprising means for holding a knife in a cut-. ting position againstone calender roll, a con trol handle held by adjustable means on the opposite side of said calender roll, and connecting means by which said control handle may regulate said knife. j

2. Anapparatus used on roll calenders for cutting or trimming sheets of material, comprising a knifeiheld against a calender roll 1n a roll, a control handle mounted on arod on the opposite side of the calender roll so as to slide axially of theroll', and a system of levers by which the by said control handle. I a

3. An apparatus used on roll calenders for cutting or trimming sheets of material, comprising a knife mounted in an arm, said arm holder slidably mounted axially of said j V knife may be regulated being pivoted to a sleeved holder and acted pinned to said sleeved holder, and the other lever being loosely of said levers being loosely pinned to a sleeve, -a rod onwhich saidsleeve slides, and a control handlethreaded through said sleeve and adapted to be used as a set-screw.

' 4. An apparatus used onroll calenders for cutting or trimming sheets of material, comprising .a knife, a control handle slidingly mounted on a fed on the opposite side of the calender from said knife, connectingvmeans by which the knife may be regulated by said 10 

